The effect is most pronounced in counties with many drinking water wells, indicating that contamination by "produced water" from fracking is a likely cause.
On May 1, workers have a chance to confront Trump by turning the tricks of his trade back on him -- dealing in the language of power.
Gregg Levine is a contributor to Truthout and the former managing editor of Firedoglake. For more of his work, please visit his site, capitoilette. Follow Gregg on Twitter: @GreggJLevine.